JP6646067B2 - Display device - Google Patents

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JP6646067B2
JP6646067B2 JP2017558108A JP2017558108A JP6646067B2 JP 6646067 B2 JP6646067 B2 JP 6646067B2 JP 2017558108 A JP2017558108 A JP 2017558108A JP 2017558108 A JP2017558108 A JP 2017558108A JP 6646067 B2 JP6646067 B2 JP 6646067B2
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display area
pixels
pixel
display
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JPWO2017110721A1 (en
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中村　仁
仁 中村
洋之 東野
洋之 東野
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Sharp Corp
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0457—Improvement of perceived resolution by subpixel rendering
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Description

本発明は、表示装置に関する。 The present invention relates to a display device.

近年、表示領域が非矩形である表示装置の開発が行われている。全ての画素が矩形である場合、画素単位で表示制御を行うと、表示領域の最外周部分において、階段状のガタツキ表示が発生する場合がある。一方、ブラックマトリクス等によって、非表示領域を覆うことにより、表示領域の最外周部分を滑らかに表示しようとすると、表示領域と非表示領域の境界に位置する画素は、１画素を構成するサブ画素毎に部分的に覆われる面積が異なり、所望の色が表現できなくなるという問題が生じる。   In recent years, a display device having a non-rectangular display area has been developed. If all pixels are rectangular and display control is performed on a pixel-by-pixel basis, step-like rattling display may occur in the outermost peripheral portion of the display area. On the other hand, when the non-display area is covered with a black matrix or the like, and the outermost peripheral portion of the display area is to be smoothly displayed, the pixel located at the boundary between the display area and the non-display area is a sub-pixel constituting one pixel. There is a problem that the area to be partially covered is different for each, and a desired color cannot be expressed.

このような問題に対応するため、特許文献１には、画素の形状を非矩形とすることにより、画像の明るさや視認性や忠実性を損なわずに、滑らかな外周輪郭を有する非矩形の表示領域を実現する技術が開示されている。   In order to cope with such a problem, Patent Document 1 discloses a non-rectangular display having a smooth outer contour without impairing brightness, visibility, and fidelity of an image by making the shape of a pixel non-rectangular. A technique for realizing an area is disclosed.

特開２０１５−８４１０４号公報JP-A-2015-84104

しかしながら、特許文献１に記載の表示装置では、新たに非矩形の画素を設計する必要がある。   However, in the display device described in Patent Document 1, it is necessary to newly design a non-rectangular pixel.

本発明は、矩形の画素が配列され、非矩形の表示領域を有する表示装置において、階段状のガタツキ表示の発生を抑制する技術を提供することを目的とする。   SUMMARY An advantage of some aspects of the invention is to provide a technique for suppressing generation of step-like rattling display in a display device having a non-rectangular display area in which rectangular pixels are arranged.

本発明の一実施形態における表示装置は、表示領域が非矩形である表示装置であって、複数の色にそれぞれ対応する複数のサブ画素から構成されている矩形の画素が前記表示領域及び非表示領域に複数配置されており、画像の表示時に、前記表示領域と前記非表示領域の両方に一部が含まれる境界画素の輝度値を、全てのサブ画素が前記非表示領域にある画素の輝度値と、当該境界画素に隣接し、かつ、全てのサブ画素が前記表示領域にある画素の輝度値との間となるように調整する、輝度値調整部を備える。   A display device according to an embodiment of the present invention is a display device in which a display area is non-rectangular, and a rectangular pixel composed of a plurality of sub-pixels respectively corresponding to a plurality of colors includes the display area and the non-display area. A plurality of pixels are arranged in the area, and when an image is displayed, the luminance value of a boundary pixel that is partially included in both the display area and the non-display area, and the luminance of all sub-pixels in the non-display area A brightness value adjustment unit that adjusts the value to be between the brightness value of a pixel adjacent to the boundary pixel and all the sub-pixels in the display area.

本実施形態の開示によれば、非矩形の表示領域と非表示領域との境界部分を視覚的にぼかして滑らかな表示とすることができるので、矩形の画素を用いた構成であっても、境界部分において階段状のガタツキ表示が生じるのを抑制することができる。   According to the disclosure of the present embodiment, it is possible to visually blur the boundary portion between the non-rectangular display area and the non-display area for smooth display. It is possible to suppress the occurrence of step-like rattling display at the boundary portion.

図１は、第１の実施形態における表示装置の外観形状を示す図である。FIG. 1 is a diagram illustrating an external shape of a display device according to the first embodiment. 図２は、表示装置の表示領域の左上隅における角部の拡大図である。FIG. 2 is an enlarged view of a corner at the upper left corner of the display area of the display device. 図３は、１画素の構成を示す図である。FIG. 3 is a diagram showing a configuration of one pixel. 図４は、表示装置の表示領域の左上隅における角部の更なる拡大図である。FIG. 4 is a further enlarged view of a corner at the upper left corner of the display area of the display device. 図５（ａ）は、本実施形態における表示装置による、表示領域の外周部分の表示例を示す図であり、図５（ｂ）は、比較例であって、表示領域の外周部分を画素単位で表示する表示例を示す図である。FIG. 5A is a diagram illustrating a display example of the outer peripheral portion of the display area by the display device according to the present embodiment, and FIG. 5B is a comparative example, in which the outer peripheral portion of the display region is represented by a pixel unit. It is a figure which shows the example of a display displayed by. 図６は、第２の実施形態における表示装置による、表示領域の外周部分の表示例を示す図である。FIG. 6 is a diagram illustrating a display example of an outer peripheral portion of a display area by the display device according to the second embodiment. 図７は、円形形状の表示領域を示す図である。FIG. 7 is a diagram showing a circular display area. 図８は、半円形形状の表示領域を示す図である。FIG. 8 is a view showing a display area having a semicircular shape.

本発明の一実施形態における表示装置は、表示領域が非矩形である表示装置であって、複数の色にそれぞれ対応する複数のサブ画素から構成されている矩形の画素が前記表示領域及び非表示領域に複数配置されており、画像の表示時に、前記表示領域と前記非表示領域の両方に一部が含まれる境界画素の輝度値を、全てのサブ画素が前記非表示領域にある画素の輝度値と、当該境界画素に隣接し、かつ、全てのサブ画素が前記表示領域にある画素の輝度値との間となるように調整する、輝度値調整部を備える（第１の構成）。   A display device according to an embodiment of the present invention is a display device in which a display area is non-rectangular, and a rectangular pixel composed of a plurality of sub-pixels respectively corresponding to a plurality of colors includes the display area and the non-display area. A plurality of pixels are arranged in the area, and when an image is displayed, the luminance value of a boundary pixel that is partially included in both the display area and the non-display area, and the luminance of all sub-pixels in the non-display area A brightness value adjustment unit that adjusts the brightness value so that all the sub-pixels adjacent to the boundary pixel and between the sub-pixels are in the display area (first configuration).

第１の構成によれば、非矩形の表示領域と非表示領域との境界部分を視覚的にぼかして滑らかな表示とすることができるので、矩形の画素を用いた構成であっても、境界部分において階段状のガタツキ表示が生じるのを抑制することができる。また、境界画素について、非表示領域に含まれる部分は、ブラックマトリクス等の遮光膜で覆わないので、所望の色が表現できなくなるという問題が生じることもない。   According to the first configuration, the boundary between the non-rectangular display area and the non-display area can be visually blurred for smooth display. It is possible to suppress the occurrence of a step-like rattling display in a portion. In addition, since the portion of the boundary pixel included in the non-display area is not covered with a light shielding film such as a black matrix, there is no problem that a desired color cannot be expressed.

第１の構成において、前記輝度値調整部は、前記境界画素の面積のうち、前記非表示領域に含まれる面積が多いほど、全てのサブ画素が前記非表示領域にある画素の輝度値に近くなるように、当該境界画素の輝度値を調整する構成としても良い（第２の構成）。   In the first configuration, the larger the area included in the non-display area among the areas of the boundary pixels, the closer the luminance value adjustment unit is to the luminance values of the pixels in the non-display area. In such a case, the brightness value of the boundary pixel may be adjusted (second configuration).

第２の構成によれば、非表示領域に含まれる面積が多い境界画素については、全てのサブ画素が非表示領域にある画素の輝度値に近くなるように、輝度値を調整するので、表示領域と非表示領域の境界部分において、より滑らかな表示を実現することができる。   According to the second configuration, for a boundary pixel having a large area included in the non-display area, the luminance value is adjusted such that all the sub-pixels are close to the luminance value of the pixel in the non-display area. Smooth display can be realized at the boundary between the region and the non-display region.

第１または第２の構成において、前記輝度値調整部は、前記境界画素の面積のうち、前記表示領域に含まれる面積が多いほど、全てのサブ画素が前記表示領域にある画素の輝度値に近くなるように、当該境界画素の輝度値を調整する構成としても良い（第３の構成）。   In the first or second configuration, the luminance value adjustment unit may be configured such that, among the areas of the boundary pixels, as the area included in the display area is larger, all the sub-pixels have the luminance values of the pixels in the display area. A configuration in which the luminance value of the boundary pixel is adjusted so as to be close (third configuration) may be adopted.

第３の構成によれば、表示領域に含まれる面積が多い境界画素については、全てのサブ画素が表示領域にある画素の輝度値に近くなるように、輝度値を調整するので、表示領域と非表示領域の境界部分において、より滑らかな表示を実現することができる。   According to the third configuration, for a boundary pixel having a large area included in the display area, the luminance value is adjusted so that all the sub-pixels are close to the luminance value of the pixel in the display area. Smooth display can be realized at the boundary of the non-display area.

第１から第３の構成において、前記輝度値調整部は、前記全てのサブ画素が前記非表示領域にある画素の輝度値と、前記境界画素に隣接し、かつ、全てのサブ画素が前記表示領域にある画素の輝度値とが同じである場合、当該境界画素の輝度値が前記全てのサブ画素が前記非表示領域にある画素の輝度値と等しくなるように調整する構成としても良い（第４の構成）。   In the first to third configurations, the luminance value adjustment unit may include a luminance value of a pixel in which all of the sub-pixels are in the non-display area, a luminance value of a pixel adjacent to the boundary pixel, and a display of all of the sub-pixels. When the luminance value of the pixel in the area is the same, the luminance value of the boundary pixel may be adjusted so that all of the sub-pixels are equal to the luminance value of the pixel in the non-display area. 4).

第４の構成によれば、全てのサブ画素が非表示領域にある画素の輝度値と、境界画素に隣接し、かつ、全てのサブ画素が表示領域にある画素の輝度値とが同じである場合でも、違和感の無い表示を行うことができる。   According to the fourth configuration, the luminance value of a pixel in which all sub-pixels are in the non-display area is the same as the luminance value of a pixel adjacent to the boundary pixel and in which all sub-pixels are in the display area. Even in this case, it is possible to perform display without a sense of incongruity.

［実施の形態］
以下、図面を参照し、本発明の実施の形態を詳しく説明する。図中同一または相当部分には同一符号を付してその説明は繰り返さない。なお、説明を分かりやすくするために、以下で参照する図面においては、構成が簡略化または模式化して示されたり、一部の構成部材が省略されたりしている。また、各図に示された構成部材間の寸法比は、必ずしも実際の寸法比を示すものではない。[Embodiment]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions have the same reference characters allotted, and description thereof will not be repeated. In addition, in order to make the description easy to understand, in the drawings referred to below, the configuration is shown in a simplified or schematic manner, or some components are omitted. In addition, the dimensional ratios between the constituent members shown in the drawings do not always indicate actual dimensional ratios.

以下の説明では、表示装置が液晶ディスプレイであるものとして説明する。ただし、本発明による表示装置が液晶ディスプレイに限定されることはなく、有機ＥＬディスプレイやプラズマディスプレイ等でも良い。   In the following description, it is assumed that the display device is a liquid crystal display. However, the display device according to the present invention is not limited to a liquid crystal display, but may be an organic EL display, a plasma display, or the like.

表示装置は、例えばスマートフォンである。ただし、表示装置がスマートフォンに限定されることはなく、タブレット端末、テレビ、パソコンのディスプレイ、車載ディスプレイなど、非矩形の表示装置であれば良い。   The display device is, for example, a smartphone. However, the display device is not limited to a smartphone, and may be any non-rectangular display device such as a tablet terminal, a television, a display of a personal computer, and a vehicle-mounted display.

［第１の実施形態］
図１は、第１の実施形態における表示装置１００の外観形状を示す図である。第１の実施形態における表示装置１００は、角部が直角ではなく、滑らかな曲線のＲ形状を有する非矩形の形状である。同様に、画像の表示領域１１も角部がＲ形状である非矩形の形状である。表示領域１１の外側は非表示領域１２である。[First Embodiment]
FIG. 1 is a diagram illustrating an external shape of a display device 100 according to the first embodiment. The display device 100 according to the first embodiment has a non-rectangular shape in which a corner is not a right angle and has a smooth curved R shape. Similarly, the display area 11 of the image is also a non-rectangular shape having a rounded corner. Outside the display area 11 is a non-display area 12.

図２は、表示装置１００の表示領域１１の左上隅における角部の拡大図である。表示装置１００には、複数の画素２がマトリクス状に配置されている。各画素２は、矩形の形状である。図２において、表示領域の境界線１３の下側が表示領域１１であり、上側が非表示領域１２である。矩形形状の画素２は、表示領域１１だけでなく、非表示領域１２にも配置されている。   FIG. 2 is an enlarged view of a corner at the upper left corner of the display area 11 of the display device 100. In the display device 100, a plurality of pixels 2 are arranged in a matrix. Each pixel 2 has a rectangular shape. In FIG. 2, the display area 11 is below the boundary 13 of the display area, and the non-display area 12 is above. The rectangular pixels 2 are arranged not only in the display area 11 but also in the non-display area 12.

図３に示すように、１つの画素２は、３つのサブ画素２１〜２３により構成されている。各サブ画素２１〜２３は、カラー表示を行うために必要な複数の色にそれぞれ対応している。具体的には、各サブ画素２１〜２３の位置にはそれぞれ、赤色（Ｒ）フィルタ、緑色（Ｇ）フィルタ、青色（Ｂ）フィルタが設けられている。   As shown in FIG. 3, one pixel 2 includes three sub-pixels 21 to 23. Each of the sub-pixels 21 to 23 corresponds to a plurality of colors necessary for performing color display. Specifically, a red (R) filter, a green (G) filter, and a blue (B) filter are provided at the positions of the sub-pixels 21 to 23, respectively.

図４は、表示装置１００の表示領域１１の左上隅における角部の更なる拡大図である。図４において、表示領域の境界線１３の下側が表示領域１１であり、上側が非表示領域１２である。表示領域１１が非矩形の場合、表示領域の境界線１３が画素と画素の間ではなく、画素の中を横切っている部分がある。このため、境界線１３が横切っている画素では、表示領域１１内に含まれる部分と、非表示領域１２内に含まれる部分とが存在する。このように、表示領域１１と非表示領域１２の両方に一部が含まれる画素を、本明細書では、境界画素と呼ぶ。   FIG. 4 is a further enlarged view of a corner at the upper left corner of the display area 11 of the display device 100. In FIG. 4, the lower side of the boundary 13 of the display area is the display area 11, and the upper side is the non-display area 12. When the display area 11 is non-rectangular, there is a portion where the boundary line 13 of the display area crosses not between pixels but between pixels. For this reason, in the pixel crossed by the boundary line 13, there are a part included in the display area 11 and a part included in the non-display area 12. A pixel partially included in both the display region 11 and the non-display region 12 in this manner is referred to as a boundary pixel in this specification.

ここで、表示領域１１の外周部分の表示のために、画素単位で表示制御を行うと、画素が矩形であるために、特定の表示パターンにおいて、階段状のガタツキが生じる。   Here, if display control is performed on a pixel-by-pixel basis to display the outer peripheral portion of the display area 11, stepwise rattling occurs in a specific display pattern because the pixels are rectangular.

また、ブラックマトリクス等の遮光膜を用いて非表示領域を覆い隠すと、表示領域１１と非表示領域１２の両方に一部が含まれる境界画素については、１画素を構成するサブ画素毎に、部分的に覆われる面積が異なるため、所望の色が表現できなくなる。例えば、白を表示しようとしているのに、赤色フィルタに対応するサブ画素が覆い隠されていると、緑色と青色の混色であるシアン色となってしまう。   Further, when the non-display area is covered with a light-shielding film such as a black matrix, for a boundary pixel partially included in both the display area 11 and the non-display area 12, for each sub-pixel constituting one pixel, Since the partially covered areas are different, a desired color cannot be expressed. For example, if a sub-pixel corresponding to a red filter is obscured while displaying white, the color will be cyan, which is a mixed color of green and blue.

このため、本実施形態における表示装置１００では、表示領域１１及び非表示領域１２の両方の領域に一部が含まれる境界画素については、遮光膜で覆わずに、画像の表示時に、輝度値の調整を行うことによって、階段状のガタツキ表示が生じるのを抑制する。具体的には、境界画素の輝度値が、表示領域１１の画素の輝度値と非表示領域１２の画素の輝度値との間となるように、輝度調整を行う。これにより、表示領域１１と非表示領域１２の境界における輪郭を視覚的にぼかして、階段状のガタツキ表示の発生を抑制することができる。また、境界画素において、非表示領域１２に含まれる部分をブラックマトリクス等の遮光膜で覆うこともないので、上述した所望の色が表現できなくなるという問題が生じることもない。   For this reason, in the display device 100 according to the present embodiment, the boundary pixels that are partially included in both the display region 11 and the non-display region 12 are not covered with the light-shielding film, and the luminance value is not displayed when the image is displayed. By performing the adjustment, the occurrence of the step-like rattling display is suppressed. Specifically, the luminance adjustment is performed so that the luminance value of the boundary pixel is between the luminance value of the pixel in the display area 11 and the luminance value of the pixel in the non-display area 12. Thereby, the outline at the boundary between the display area 11 and the non-display area 12 is visually blurred, and the occurrence of the step-like rattling display can be suppressed. In addition, since a portion included in the non-display area 12 in the boundary pixel is not covered with a light-shielding film such as a black matrix, the above-described problem that a desired color cannot be expressed does not occur.

輝度値の調整は、電気的な手法を用いて行う。すなわち、画素毎に設けられている画素電極と、画素電極に対向する対向電極との間の電圧を調整することによって、輝度値を調整する。この電圧の調整は、図示しない表示ドライバにより行われる。表示ドライバは、例えば、内部に駆動回路を有するＬＳＩチップからなる。すなわち、表示ドライバが輝度値の調整を行う輝度調整部として機能する。   The adjustment of the luminance value is performed using an electric method. That is, the luminance value is adjusted by adjusting the voltage between the pixel electrode provided for each pixel and the counter electrode facing the pixel electrode. This voltage adjustment is performed by a display driver (not shown). The display driver is composed of, for example, an LSI chip having a drive circuit inside. That is, the display driver functions as a brightness adjustment unit that adjusts the brightness value.

輝度値の調整について、図４を参照しながら詳しく説明する。図４に示す画素１−１、１−２、１−３、２−１、２−２のうち、画素１−３は、全てのサブ画素が非表示領域１２内にあり、画素２−１は、全てのサブ画素が表示領域１１内にある。また、画素１−１、１−２、２−２は、境界画素である。   The adjustment of the brightness value will be described in detail with reference to FIG. Among the pixels 1-1, 1-2, 1-3, 2-1 and 2-2 shown in FIG. 4, the pixel 1-3 has all the sub-pixels in the non-display area 12 and the pixel 2-1. Indicates that all the sub-pixels are in the display area 11. Pixels 1-1, 1-2, and 2-2 are boundary pixels.

ここでは、非表示領域１２を黒色で表示するものとして説明する。例えば、画素１−３のように、全てのサブ画素が非表示領域１２内にある画素は、ブラックマトリクス等の遮光膜で覆う。ただし、遮光膜で覆わずに、当該画素を黒色表示するようにしても良い。   Here, a description will be given assuming that the non-display area 12 is displayed in black. For example, a pixel in which all the sub-pixels are in the non-display area 12, such as the pixel 1-3, is covered with a light shielding film such as a black matrix. However, the pixel may be displayed in black without being covered with the light shielding film.

この場合、全てのサブ画素が非表示領域１２内にある画素の輝度値をＴ１、全てのサブ画素が表示領域１１内にある画素の輝度値をＴ２、境界画素の輝度値をＴ３とすると、次式（１）の関係が成り立つ。ただし、全てのサブ画素が表示領域１１内にある画素の輝度値Ｔ２とは、対象とする境界画素と隣接する画素のうち、全てのサブ画素が表示領域１１内にある画素の輝度値である。例えば、対象とする境界画素が画素２−２の場合、全てのサブ画素が表示領域１１内にある画素の輝度値Ｔ２は、画素２−１の輝度値、または、境界画素２−２の右隣の画素の輝度値である。
Ｔ１＜Ｔ３＜Ｔ２ …（１）In this case, assuming that the luminance value of a pixel in which all the sub-pixels are in the non-display area 12 is T1, the luminance value of a pixel in which all the sub-pixels are in the display area 11 is T2, and the luminance value of the boundary pixel is T3, The following equation (1) holds. However, the luminance value T2 of a pixel in which all sub-pixels are in the display area 11 is a luminance value of a pixel in which all sub-pixels are in the display area 11 among pixels adjacent to the target boundary pixel. . For example, when the target boundary pixel is the pixel 2-2, the luminance value T2 of the pixel in which all the sub-pixels are in the display area 11 is the luminance value of the pixel 2-1 or the right side of the boundary pixel 2-2. This is the luminance value of the adjacent pixel.
T1 <T3 <T2 (1)

境界画素の輝度値Ｔ３は、全てのサブ画素が非表示領域１２内にある画素の輝度値Ｔ１と、全てのサブ画素が表示領域１１内にある画素の輝度値Ｔ２との中間値となるように調整する。ただし、境界画素の輝度値Ｔ３が、全てのサブ画素が非表示領域１２内にある画素の輝度値をＴ１と、全てのサブ画素が表示領域１１内にある画素の輝度値をＴ２との中間値に限定されることはなく、輝度値Ｔ１と輝度値Ｔ２との間の値であれば良い。   The luminance value T3 of the boundary pixel is an intermediate value between the luminance value T1 of a pixel in which all sub-pixels are in the non-display area 12 and the luminance value T2 of a pixel in which all sub-pixels are in the display area 11. Adjust to However, the luminance value T3 of the boundary pixel is intermediate between T1 which is the luminance value of a pixel in which all the sub-pixels are in the non-display area 12 and T2 which is the luminance value of the pixel in which all the sub-pixels are in the display area 11. The value is not limited, and may be any value between the luminance value T1 and the luminance value T2.

ただし、全てのサブ画素が表示領域１１内にある画素も黒色表示する場合には、式（１）の関係が成り立たない。このような場合も考慮して、少なくとも次式（２）の関係が成り立つように、輝度Ｔ３を調整する。
Ｔ１≦Ｔ３≦Ｔ２ …（２）However, when all the sub-pixels within the display area 11 also display black, the relationship of Expression (1) does not hold. In consideration of such a case, the luminance T3 is adjusted so that at least the relationship of the following equation (2) is satisfied.
T1 ≦ T3 ≦ T2 (2)

境界画素の輝度値は、非表示領域１２に含まれる面積が多いほど低くなるように設定する。図４に示す例では、境界画素である画素１−１、１−２、２−２のうち、画素１−２、画素２−２、画素１−１の順に、非表示領域１２に含まれる面積は多くなる。全てのサブ画素が表示領域１１内にある画素２−１を白表示する場合、全てのサブ画素が非表示領域１２内にある画素１−３の輝度値が最も低く、全てのサブ画素が表示領域１１内にある画素２−１の輝度値が最も高くなる。従って、画素１−１、画素１−２、画素１−３、画素２−１、画素２−２の輝度値をそれぞれＴ１−１、Ｔ１−２、Ｔ１−３、Ｔ２−１、Ｔ２−２とすると、次式（３）の関係が成り立つ。
Ｔ１−３＜Ｔ１−２＜Ｔ２−２＜Ｔ１−１＜Ｔ２−１ …（３）The luminance value of the boundary pixel is set to decrease as the area included in the non-display area 12 increases. In the example illustrated in FIG. 4, among the pixels 1-1, 1-2, and 2-2 that are boundary pixels, the pixels 1-2, the pixels 2-2, and the pixels 1-1 are included in the non-display area 12 in this order. The area increases. When all the sub-pixels display the pixel 2-1 in the display area 11 in white, all the sub-pixels have the lowest luminance value of the pixel 1-3 in the non-display area 12, and all the sub-pixels display. The luminance value of the pixel 2-1 in the area 11 is the highest. Accordingly, the luminance values of the pixels 1-1, 1-2, 1-3, 2-1 and 2-2 are respectively set to T1-1, T1-2, T1-3, T2-1 and T2-2. Then, the following equation (3) holds.
T1-3 <T1-2 <T2-2 <T1-1 <T2-1 (3)

図５（ａ）は、本実施形態における表示装置１００による、表示領域１１の外周部分の表示例を示す図である。また、図５（ｂ）は、比較例であって、表示領域１１の外周部分を画素単位で表示する表示例を示す図である。   FIG. 5A is a diagram illustrating a display example of the outer peripheral portion of the display area 11 by the display device 100 according to the present embodiment. FIG. 5B is a comparative example, and is a diagram illustrating a display example in which the outer peripheral portion of the display area 11 is displayed in pixel units.

図５（ｂ）に示す比較例では、画素単位で表示制御を行うため、表示領域１１の外周部分において、階段状のガタツキが生じている。一方、本実施形態における表示装置１００による表示方法では、図５（ａ）に示すように、非表示領域１２と表示領域１１の境界にある境界画素の輝度値を、非表示領域１２内にある画素の輝度値と表示領域１１内にある画素の輝度値との間の輝度値としている。これにより、非表示領域１２と表示領域１１の境界部分を視覚的にぼかして滑らかな表示とすることができるので、境界部分において階段状のガタツキが生じるのを抑制することができる。また、表示領域１１及び非表示領域１２の両方の領域に一部が含まれる境界画素について、非表示領域１２に含まれる部分は、ブラックマトリクス等の遮光膜で覆わないので、所望の色が表現できなくなるという問題が生じることもない。   In the comparative example shown in FIG. 5B, the display control is performed on a pixel-by-pixel basis, so that a step-like rattling occurs in the outer peripheral portion of the display area 11. On the other hand, in the display method by the display device 100 according to the present embodiment, as shown in FIG. 5A, the luminance value of the boundary pixel at the boundary between the non-display area 12 and the display area 11 is set in the non-display area 12. The brightness value is between the brightness value of the pixel and the brightness value of the pixel in the display area 11. Accordingly, the boundary between the non-display area 12 and the display area 11 can be visually blurred to provide a smooth display, and thus it is possible to suppress the occurrence of step-like rattling at the boundary. Further, with respect to the boundary pixels partially included in both the display region 11 and the non-display region 12, the portions included in the non-display region 12 are not covered with a light shielding film such as a black matrix, so that a desired color is expressed. The problem of being unable to do so does not occur.

［第２の実施形態］
第１の実施形態では、非表示領域１２が黒色であるものとして説明した。第２の実施形態では、非表示領域１２が白色である場合について説明する。この場合、全てのサブ画素が非表示領域１２内にある画素は、白色の膜で覆うようにしても良いし、当該画素を白色表示するようにしても良い。[Second embodiment]
In the first embodiment, the non-display area 12 has been described as being black. In the second embodiment, a case where the non-display area 12 is white will be described. In this case, a pixel in which all the sub-pixels are in the non-display area 12 may be covered with a white film, or the pixel may be displayed in white.

非表示領域１２が白色である場合、全てのサブ画素が非表示領域１２内にある画素の輝度をＴ１、全てのサブ画素が表示領域１１内にある画素の輝度をＴ２、境界画素の輝度をＴ３とすると、次式（４）の関係が成り立つ。ただし、全てのサブ画素が表示領域１１内にある画素の輝度値Ｔ２とは、対象とする境界画素と隣接する画素のうち、全てのサブ画素が表示領域１１内にある画素の輝度値である。
Ｔ２＜Ｔ３＜Ｔ１ …（４）When the non-display area 12 is white, all the sub-pixels have the luminance of the pixel in the non-display area 12 as T1, the luminance of all the sub-pixels in the display area 11 as T2, and the luminance of the boundary pixel as T1. Assuming T3, the following equation (4) holds. However, the luminance value T2 of a pixel in which all sub-pixels are in the display area 11 is a luminance value of a pixel in which all sub-pixels are in the display area 11 among pixels adjacent to the target boundary pixel. .
T2 <T3 <T1 (4)

境界画素の輝度値Ｔ３は、全てのサブ画素が非表示領域１２内にある画素の輝度値をＴ１と、全てのサブ画素が表示領域１１内にある画素の輝度値をＴ２との中間値となるように調整する。ただし、境界画素の輝度値Ｔ３が、全てのサブ画素が非表示領域１２内にある画素の輝度値をＴ１と、全てのサブ画素が表示領域１１内にある画素の輝度値をＴ２との中間値に限定されることはなく、輝度値Ｔ１と輝度値Ｔ２との間の値であれば良い。   The luminance value T3 of the boundary pixel is an intermediate value between T1 and the luminance value of a pixel in which all sub-pixels are in the non-display area 12 and the luminance value of a pixel in which all sub-pixels are in the display area 11. Adjust so that However, the luminance value T3 of the boundary pixel is intermediate between T1 which is the luminance value of a pixel in which all the sub-pixels are in the non-display area 12 and T2 which is the luminance value of the pixel in which all the sub-pixels are in the display area 11. The value is not limited, and may be any value between the luminance value T1 and the luminance value T2.

ただし、全てのサブ画素が表示領域１１内にある画素も白色表示する場合には、式（４）の関係が成り立たない。このような場合も考慮して、少なくとも次式（５）の関係が成り立つように、輝度Ｔ３を調整する。
Ｔ２≦Ｔ３≦Ｔ１ …（５）However, if all the sub-pixels also display white pixels in the display area 11, the relationship of Expression (4) does not hold. In consideration of such a case, the luminance T3 is adjusted so that at least the relationship of the following equation (5) is satisfied.
T2 ≦ T3 ≦ T1 (5)

境界画素の輝度値は、非表示領域１２に含まれる面積が多いほど高くなるように設定する。図４に示す例では、境界画素である画素１−１、１−２、２−２のうち、画素１−２、画素２−２、画素１−１の順に、非表示領域１２に含まれる面積は多くなる。全てのサブ画素が表示領域１１内にある画素２−１を黒表示する場合、全てのサブ画素が表示領域１１内にある画素２−１の輝度値が最も低く、全てのサブ画素が非表示領域１２内にある画素１−３の輝度値が最も高くなる。従って、画素１−１、画素１−２、画素１−３、画素２−１、画素２−２の輝度値をそれぞれＴ１−１、Ｔ１−２、Ｔ１−３、Ｔ２−１、Ｔ２−２とすると、次式（６）の関係が成り立つ。
Ｔ２−１＜Ｔ１−１＜Ｔ２−２＜Ｔ１−２＜Ｔ１−３ …（６）The luminance value of the boundary pixel is set to increase as the area included in the non-display area 12 increases. In the example illustrated in FIG. 4, among the pixels 1-1, 1-2, and 2-2 that are boundary pixels, the pixels 1-2, the pixels 2-2, and the pixels 1-1 are included in the non-display area 12 in this order. The area increases. When all the sub-pixels display the pixel 2-1 in the display area 11 in black, all the sub-pixels have the lowest luminance value of the pixel 2-1 in the display area 11 and all the sub-pixels are not displayed. The luminance value of the pixel 1-3 in the area 12 is the highest. Accordingly, the luminance values of the pixels 1-1, 1-2, 1-3, 2-1 and 2-2 are respectively set to T1-1, T1-2, T1-3, T2-1 and T2-2. Then, the following equation (6) holds.
T2-1 <T1-1 <T2-2 <T1-2 <T1-3 (6)

図６は、本実施形態における表示装置１００による、表示領域１１の外周部分の表示例を示す図である。図６に示すように、非表示領域１２と表示領域１１の境界にある境界画素の輝度値を、非表示領域１２内にある画素の輝度値と表示領域１１内にある画素の輝度値との間の輝度値としている。これにより、非表示領域１２と表示領域１１の境界部分を視覚的にぼかして滑らかな表示とすることができるので、境界部分において階段状のガタツキが生じるのを抑制することができる。また、表示領域１１及び非表示領域１２の両方の領域に一部が含まれる境界画素について、非表示領域１２に含まれる部分は、遮光膜で覆わないので、所望の色が表現できなくなるという問題が生じることもない。   FIG. 6 is a diagram illustrating a display example of the outer peripheral portion of the display area 11 by the display device 100 according to the present embodiment. As shown in FIG. 6, the luminance value of the boundary pixel at the boundary between the non-display area 12 and the display area 11 is calculated by comparing the luminance value of the pixel in the non-display area 12 with the luminance value of the pixel in the display area 11. The brightness value is between. Accordingly, the boundary between the non-display area 12 and the display area 11 can be visually blurred to provide a smooth display, so that the occurrence of step-like rattling at the boundary can be suppressed. Further, with respect to the boundary pixels partially included in both the display region 11 and the non-display region 12, the portion included in the non-display region 12 is not covered with the light-shielding film, so that a desired color cannot be expressed. Does not occur.

以上、上述した実施の形態は本発明を実施するための例示に過ぎない。よって、本発明は上述した実施の形態に限定されることなく、その趣旨を逸脱しない範囲内で上述した実施の形態を適宜変形して実施することが可能である。   The embodiments described above are merely examples for implementing the present invention. Therefore, the present invention is not limited to the above-described embodiment, and can be implemented by appropriately modifying the above-described embodiment without departing from the spirit thereof.

例えば、１画素は３つのサブ画素から構成されているものとして説明したが、２つのサブ画素から構成されていても良いし、４つ以上のサブ画素から構成されていても良い。例えば、１画素が４つのサブ画素から構成されている場合、４つのサブ画素は、赤色、緑色、青色、白色の４色に対応していても良いし、赤色、緑色、青色、黄色の４色に対応していても良い。   For example, one pixel has been described as being composed of three sub-pixels, but may be composed of two sub-pixels, or may be composed of four or more sub-pixels. For example, when one pixel is composed of four sub-pixels, the four sub-pixels may correspond to four colors of red, green, blue and white, or may correspond to four colors of red, green, blue and yellow. It may correspond to a color.

表示装置１００の表示領域１１の形状は、非矩形であれば、どのような形状でも良い。例えば、図７に示すような円形形状でも良いし、図８に示すような半円形形状でも良い。   The shape of the display area 11 of the display device 100 may be any shape as long as it is non-rectangular. For example, a circular shape as shown in FIG. 7 or a semi-circular shape as shown in FIG. 8 may be used.

非表示領域１２は、第１の実施形態で説明した黒色、及び第２の実施形態で説明した白色以外の色としても良い。   The non-display area 12 may have a color other than the black described in the first embodiment and the white described in the second embodiment.

上述した各実施形態では、境界画素の輝度値を調整するものとして説明したが、全てのサブ画素が表示領域１１に含まれている画素であっても、表示領域１１と非表示領域１２の境界に近い画素については、輝度値を調整するようにしても良い。すなわち、全てのサブ画素が表示領域１１に含まれている画素のうち、表示領域１１と非表示領域１２の境界から近い画素については、全てのサブ画素が非表示領域１２にある画素の輝度値と、境界画素に隣接し、かつ、全てのサブ画素が表示領域１１にある画素の輝度値との間となるように、輝度値を調整する。   In each of the embodiments described above, the brightness value of the boundary pixel is adjusted. However, even if all the sub-pixels are pixels included in the display region 11, the boundary between the display region 11 and the non-display region 12 may be adjusted. The luminance value may be adjusted for a pixel close to. That is, among the pixels in which all the sub-pixels are included in the display area 11, for the pixel near the boundary between the display area 11 and the non-display area 12, the luminance value of the pixel in which all the sub-pixels are in the non-display area 12 Then, the luminance value is adjusted such that all the sub-pixels are adjacent to the boundary pixel and the luminance values of the pixels in the display area 11.

上記実施形態（変形例を含む）で説明した表示装置において、輝度調整部として機能する表示ドライバは、一例としてＬＳＩからなるものとして説明したが、集積度の違いにより、ＩＣ、システムＬＳＩ、スーパーＬＳＩ、ウルトラＬＳＩと呼称されることもある。   In the display devices described in the above embodiments (including the modifications), the display driver functioning as the luminance adjustment unit has been described as being constituted by an LSI as an example. However, depending on the degree of integration, IC, system LSI, super LSI , Ultra LSI.

また、集積回路化の手法はＬＳＩに限るものではなく、専用回路又は汎用プロセッサで実現してもよい。ＬＳＩ製造後に、プログラムすることが可能なＦＰＧＡ（Ｆｉｅｌｄ Ｐｒｏｇｒａｍｍａｂｌｅ Ｇａｔｅ Ａｒｒａｙ）や、ＬＳＩ内部の回路セルの接続や設定を再構成可能なリコンフィギュラブル・プロセッサーを利用しても良い。   Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. After the LSI is manufactured, an FPGA (Field Programmable Gate Array) that can be programmed or a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.

また、半導体技術の進歩又は派生する別技術によりＬＳＩに置き換わる集積回路化の技術が登場すれば、当然、その技術を用いて機能ブロックの集積化を行ってもよい。バイオ技術の適用等が可能性としてあり得る。   In addition, if an integrated circuit technology that replaces the LSI appears due to the progress of the semiconductor technology or another derivative technology, the functional blocks may be naturally integrated using the technology. Application of biotechnology and the like are possible.

上記各実施形態で説明した処理の一部または全部は、プログラムにより実現されるものであってもよい。この場合、各処理の一部または全部は、コンピュータにおいて、中央演算装置（ＣＰＵ）、マイクロプロセッサ、プロセッサ等により行われる。それぞれの処理を行うためのプログラムは、ハードディスク、ＲＯＭなどの記憶装置に格納されており、ＲＯＭにおいて、あるいはＲＡＭに読み出されて実行される。記憶装置（記憶媒体）は、一時的でない有形のものであり、例えば、テープ、ディスク、カード、半導体メモリ、プログラマブルな論理回路などを用いることができる。   A part or all of the processing described in each of the above embodiments may be realized by a program. In this case, part or all of each processing is performed by a central processing unit (CPU), a microprocessor, a processor, or the like in a computer. A program for performing each process is stored in a storage device such as a hard disk or a ROM, and is executed by being read from the ROM or read into the RAM. The storage device (storage medium) is non-transitory and tangible, and for example, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used.

上記実施形態で説明した各処理をハードウェアにより実現してもよいし、ソフトウェア（ＯＳ（オペレーティングシステム）、ミドルウェア、あるいは、所定のライブラリとともに実現される場合を含む。）により実現してもよい。さらに、ソフトウェアおよびハードウェアの混在処理により実現しても良い。なお、上記実施形態に係る表示装置の表示処理をハードウェアにより実現する場合、各処理を行うためのタイミング調整を行う必要があるのは言うまでもない。上記実施形態においては、説明便宜のため、実際のハードウェア設計で生じる各種信号のタイミング調整の詳細については省略している。   Each process described in the above embodiment may be realized by hardware, or may be realized by software (including a case where it is realized together with an OS (operating system), middleware, or a predetermined library). Further, it may be realized by mixed processing of software and hardware. When the display processing of the display device according to the above embodiment is realized by hardware, it is needless to say that it is necessary to adjust the timing for performing each processing. In the above embodiment, details of timing adjustment of various signals generated in actual hardware design are omitted for convenience of explanation.

２…画素、１１…表示領域、１２…非表示領域、２１、２２、２３…サブ画素、１００…表示装置   2 ... pixels, 11 ... display area, 12 ... non-display area, 21, 22, 23 ... sub-pixels, 100 ... display device

Claims (3)

表示領域が非矩形である表示装置であって、
複数の色にそれぞれ対応する複数のサブ画素から構成されている矩形の画素が前記表示領域及び非表示領域に複数配置されており、
画像の表示時に、前記表示領域と前記非表示領域の両方に一部が含まれる境界画素の輝度値を調整する輝度値調整部を備え、
前記非表示領域にある全てのサブ画素は、画像の表示時に、同一の輝度値を呈し、
前記輝度値調整部は、
前記全てのサブ画素が前記非表示領域にある画素の輝度値と、前記境界画素に隣接し、かつ、全てのサブ画素が前記表示領域にある画素の輝度値とが異なる場合、全てのサブ画素が前記非表示領域にある画素の輝度値と、当該境界画素に隣接し、かつ、全てのサブ画素が前記表示領域にある画素の輝度値との間となるように調整し、
前記全てのサブ画素が前記非表示領域にある画素の輝度値と、前記境界画素に隣接し、かつ、全てのサブ画素が前記表示領域にある画素の輝度値とが同じである場合、当該境界画素の輝度値が前記全てのサブ画素が前記非表示領域にある画素の輝度値と等しくなるように調整する、輝度値調整部を備える、表示装置。 A display device having a non-rectangular display area,
A plurality of rectangular pixels composed of a plurality of sub-pixels respectively corresponding to a plurality of colors are arranged in the display area and the non-display area,
At the time of display of an image, a brightness value adjustment unit that adjusts the brightness value of a boundary pixel that is partially included in both the display area and the non-display area ,
All the sub-pixels in the non-display area exhibit the same luminance value when displaying an image,
The brightness value adjustment unit,
If the luminance values of the pixels in which all the sub-pixels are in the non-display area and the luminance values of the pixels in the display area adjacent to the boundary pixel and all the sub-pixels are different, Is adjusted to be between the luminance value of the pixel in the non-display area and the luminance value of the pixel in the display area adjacent to the boundary pixel and all sub-pixels ,
If the luminance value of a pixel in which all the sub-pixels are in the non-display area and the luminance value of a pixel in the display area adjacent to the boundary pixel and all the sub-pixels are the same, A display device comprising: a brightness value adjustment unit that adjusts a brightness value of a pixel so that all of the sub-pixels are equal to a brightness value of a pixel in the non-display area . 前記輝度値調整部は、前記境界画素の面積のうち、前記非表示領域に含まれる面積が多いほど、全てのサブ画素が前記非表示領域にある画素の輝度値に近くなるように、当該境界画素の輝度値を調整する、請求項１に記載の表示装置。   The luminance value adjustment unit may set the boundary value such that the larger the area included in the non-display area among the areas of the boundary pixels, the closer all the sub-pixels are to the luminance values of the pixels in the non-display area. The display device according to claim 1, wherein the brightness value of the pixel is adjusted. 前記輝度値調整部は、前記境界画素の面積のうち、前記表示領域に含まれる面積が多いほど、全てのサブ画素が前記表示領域にある画素の輝度値に近くなるように、当該境界画素の輝度値を調整する、請求項１または２に記載の表示装置。   The luminance value adjustment unit, of the area of the boundary pixel, the larger the area included in the display area, the closer to the luminance value of the pixel in the display area, all sub-pixels of the boundary pixel The display device according to claim 1, wherein the brightness value is adjusted.
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